On single hung windows, the top sash is fixed in place and does not move, but the bottom sash is operable.

Characteristics

• Elegant appearance with glass in different pattern
• Life long durability
• High weather resistance even in coastal areas;
  Weather and termite resistant, doesn’t fade or rust
• UV stability or efficient thermal insulation
• High acoustic / Sound insulation
• Water tightness or weather tightness
• Ageing resistance
• Highly Adaptable to architectural requirement.
• Extremely energy efficient
• Airtight sealing to keep out noise, dust, and pollution
• Frame Thickness 3 1/8”